A telescopic boom reinforced vehicle frame
By adding reinforced engine mounting bases, cab mounting bases, and side plate reinforcements to the frame of the telescopic boom forklift, the problem of insufficient frame strength was solved, achieving stable operation and shock absorption under high-intensity working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGGONG SHANGHAI MASCH MFG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-28
AI Technical Summary
The existing telescopic boom forklifts have low frame strength and cannot meet the requirements of high-intensity working conditions.
A telescopic arm reinforced frame was designed, which includes a reinforced engine mounting base, a cab mounting base, and side plate reinforcement plates. The overall strength of the frame is enhanced by thickening high-strength plates and reinforcing channel steel, reducing engine and cab vibrations, and stress concentration is reduced by using concave-convex arc-shaped side plate reinforcement plates.
It improves the overall strength of the chassis, reduces engine and cab vibration, adapts to high-intensity working conditions, and enhances product quality.
Smart Images

Figure CN224562601U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a telescopic boom reinforced frame, belonging to the technical field of telescopic boom forklifts. Background Technology
[0002] Telescopic boom forklifts are multi-purpose forklifts with off-road capabilities, primarily suitable for material handling and high-altitude operations in construction sites, warehousing and logistics, municipal engineering, agriculture, property management, and mining. Integrating the functions of a forklift, loader, aerial work platform, and small crane, the frame is the main structural component of the telescopic boom forklift. However, the existing frame structures of telescopic boom forklifts generally have low strength and cannot meet the requirements of high-intensity working conditions, necessitating improvement. Utility Model Content
[0003] The purpose of this invention is to solve the problem of low frame strength in telescopic boom forklifts under high-intensity working conditions.
[0004] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution:
[0005] A telescopic boom reinforced frame includes a left side frame plate and a right side frame plate that are parallel to each other and arranged along the front and rear of the vehicle body. A fuel tank is provided between the rear ends of the left side frame plate and the right side frame plate. A basic boom mounting axle is provided between the left side frame plate and the right side frame plate, located above the fuel tank. An engine mounting seat is welded to the middle outer wall of the right side frame plate on the side opposite to the left side frame plate. A cab mounting seat is welded to the middle front outer wall of the left side frame plate on the side opposite to the right side frame plate. At least one side plate reinforcing plate is provided on the outer wall of the left side frame plate on the side opposite to the right side frame plate.
[0006] Preferably, the overall structure of the engine mounting bracket is reinforced. The engine mounting bracket includes a front side plate, a rear side plate, a reinforcing channel steel, a connecting plate, a mounting plate, a stiffener, and a reinforcing plate. The front side plate and the rear side plate are spaced apart along the length of the right side plate of the vehicle frame and are respectively connected to the right side plate of the vehicle frame. The front side plate and the rear side plate are connected by the reinforcing channel steel and the connecting plate. Multiple mounting plates are welded to both the front and rear side plates for mounting the engine. At least one stiffener is welded to the bottom side of each mounting plate and the corresponding side wall of the front and rear side plates for support. The reinforcing plate is welded below the connection between the front and rear side plates and the reinforcing channel steel and the connecting plate to form a box structure.
[0007] Furthermore, both the front and rear side plates of the mounting base are made of thickened high-strength steel.
[0008] Preferably, the cab mounting base welded integral structure is reinforced, and the cab mounting base welded includes a rectangular tube, a lower reinforcing plate, an upper reinforcing plate, and an outer reinforcing plate. Two rectangular tubes are spaced apart along the length of the left side plate of the vehicle frame and are welded to the outer wall of the left side plate of the vehicle frame. The two rectangular tubes are welded to the outer wall of the left side plate of the vehicle frame through the lower reinforcing plate and the upper reinforcing plate. At least one outer reinforcing plate is welded between the side wall of the two rectangular tubes facing away from each other and the outer wall of the left side plate of the vehicle frame.
[0009] Preferably, the outer wall of the side plate reinforcing plate has a concave-convex arc shape.
[0010] The telescopic boom reinforced vehicle frame provided by this utility model has the following advantages:
[0011] This utility model features a telescopic boom reinforced frame. By arranging the left and right side panels of the frame parallel to each other along the front and rear of the vehicle body, with the fuel tank connected to the rear ends of both panels, the main boom mounting bracket positioned above the fuel tank, and the engine mounting bracket welded to the middle of the right side panel, the overall structure is stronger and effectively reduces engine vibration during operation. The cab mounting bracket is welded to the front center of the left side panel, further enhancing overall strength and reducing cab vibration during operation. A side panel reinforcement plate, with a concave-convex arc shape, is located on the outer side of the left side panel, reducing stress concentration and strengthening the side panel's resistance to bending moments. Using this utility model's frame allows for adaptation to high-intensity operating conditions and improves product quality. Attached Figure Description
[0012] Figure 1 A front view of a telescopic arm reinforced frame provided in an embodiment of this utility model;
[0013] Figure 2 A top view of a telescopic boom reinforced vehicle frame provided for an embodiment of this utility model;
[0014] Figure 3 A schematic diagram of the welding structure of the engine mounting base provided in this embodiment of the utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the cab mounting bracket welded together according to an embodiment of the present utility model.
[0016] In the picture:
[0017] 1-Left side panel of the frame; 2-Right side panel of the frame; 3-Basic arm mounting axle; 4-Fuel tank; 5-Engine mounting seat welded; 51-Front side panel of the mounting seat; 52-Rear side panel of the mounting seat; 53-Reinforcing channel steel; 54-Connecting plate; 55-Mounting plate; 56-Firming rib; 57-Reinforcing plate; 6-Cab mounting seat welded; 61-Rectangular tube; 62-Lower reinforcing plate; 63-Upper reinforcing plate; 64-Outer reinforcing plate; 7-Side panel reinforcing plate. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] Reference Figures 1-4 A telescopic boom reinforced frame includes a left side plate 1, a right side plate 2, a basic boom mounting axle 3, an oil tank 4, an engine mounting base welded together 5, a cab mounting base welded together 6, and a side plate reinforcing plate 7.
[0020] The left side plate 1 and the right side plate 2 of the frame are parallel to each other and arranged along the front and rear of the vehicle body. The fuel tank 4 is connected between the rear ends of the left side plate 1 and the right side plate 2. The basic arm mounting bracket 3 is arranged between the left side plate 1 and the right side plate 2 and is located on the upper side of the fuel tank 4. The engine mounting bracket welding 5 is welded and fixed to the outer wall of the right side plate 2 away from the left side plate 1. The cab mounting bracket welding 6 is welded and fixed to the outer wall of the left side plate 1 away from the right side plate 2 at the middle front position. At least one side plate reinforcing plate 7 is attached to the outer wall of the left side plate 1 away from the right side plate 2. The outer wall of the side plate reinforcing plate 7 is in the shape of a concave-convex arc. The concave-convex arc shape of the side plate reinforcing plate 7 can reduce stress concentration and thus strengthen the side plate's resistance to bending moment. In feasible embodiments, the side reinforcing plate 57 can be fixed by pasting, welding or bolting.
[0021] Reference Figure 1 and Figure 3 The engine mounting base welded together 5 has a reinforced overall structure. The engine mounting base welded together 5 includes a front side plate 51, a rear side plate 52, a reinforcing channel steel 53, a connecting plate 54, a mounting plate 55, a stiffening plate 56, and a reinforcing plate 57.
[0022] Taking the stressed working state as an example, the front side plate 51 and the rear side plate 52 of the mounting base are spaced apart along the length of the right side plate 2 of the frame and are welded to the right side plate 2 of the frame respectively. Both the front side plate 51 and the rear side plate 52 of the mounting base are made of thickened high-strength plates. A reinforcing channel steel 53 is welded between the sides of the front side plate 51 and the rear side plate 52 of the mounting base that are connected to the right side plate 2 of the frame. A connecting plate 54 is welded between the sides of the front side plate 51 and the rear side plate 52 of the mounting base that are away from the right side plate 2 of the frame. Multiple mounting plates 55 are welded to both the engine mounting base and the rear side plate 52 for mounting the engine. At least one stiffening plate 56 is welded between the bottom side of each mounting plate 55 and the side wall of the corresponding front side plate 51 and rear side plate 52 of the mounting base for support. A reinforcing plate 57 is welded below the connection between the front side plate 51 and the rear side plate 52 of the mounting base and the reinforcing channel steel 53 and the connecting plate 54 to form a box structure. The overall structure of the engine mounting base welded together is stronger, which can effectively reduce the vibration generated by the engine in the working state.
[0023] Reference Figure 1 and Figure 4 The cab mounting base welded together 6 has a reinforced overall structure, which includes a rectangular tube 61, a lower reinforcing plate 62, an upper reinforcing plate 63, and an outer reinforcing plate 64.
[0024] Taking the stressed working state as an example, two rectangular tubes 61 are arranged at intervals along the length of the left side plate 1 of the frame and are both welded to the outer wall of the left side plate 1 of the frame. The two rectangular tubes 61 are thickened. The two rectangular tubes 61 are welded to the outer wall of the left side plate 1 of the frame through the lower reinforcing plate 62 and the upper reinforcing plate 63. At least one outer reinforcing plate 64 is welded between the side wall of the two rectangular tubes 61 that are opposite to each other and the outer wall of the left side plate 1 of the frame, thereby improving the overall structural strength of the cab mounting seat welded 6 and reducing the vibration generated by the cab in the working state.
[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.
Claims
1. A telescopic boom reinforced vehicle frame, characterized in that, The vehicle includes a left side plate (1) and a right side plate (2) of the frame that are parallel to each other and arranged along the front and rear of the vehicle body. A fuel tank (4) is provided between the rear ends of the left side plate (1) and the right side plate (2). A basic arm mounting axle (3) is provided on the upper side of the fuel tank (4) between the left side plate (1) and the right side plate (2). An engine mounting seat welded (5) is provided on the outer wall of the middle part of the side of the right side plate (2) away from the left side plate (1). A cab mounting seat welded (6) is provided on the outer wall of the middle front side of the side of the left side plate (1) away from the right side plate (2). At least one side plate reinforcing plate (7) is provided on the outer wall of the side of the left side plate (1) away from the right side plate (2).
2. The telescopic boom reinforced frame as described in claim 1, characterized in that, The engine mounting base welding (5) has a reinforced overall structure. The engine mounting base welding (5) includes a front side plate (51), a rear side plate (52), a reinforcing channel steel (53), a connecting plate (54), a mounting plate (55), a stiffening rib (56), and a reinforcing plate (57). The front side plate (51) and the rear side plate (52) are spaced apart along the length of the right side plate (2) of the vehicle frame and are respectively connected to the right side plate (2) of the vehicle frame. The front side plate (51) and the rear side plate (52) are connected by the reinforcing channel steel. The steel (53) and the connecting plate (54) are connected. Multiple mounting plates (55) are welded on the front side plate (51) and the rear side plate (52) of the mounting base for mounting the engine. At least one stiffening plate (56) is welded between the bottom side of each mounting plate (55) and the side wall of the corresponding front side plate (51) and rear side plate (52) of the mounting base for support. The reinforcing plate (57) is welded below the connection between the front side plate (51) and the rear side plate (52) of the mounting base and the reinforcing channel steel (53) and the connecting plate (54) to form a box structure.
3. The telescopic boom reinforced frame as described in claim 2, characterized in that, Both the front side plate (51) and the rear side plate (52) of the mounting base are thickened high-strength plates.
4. The telescopic boom reinforced frame as described in claim 1, characterized in that, The cab mounting base welding (6) has a reinforced overall structure. The cab mounting base welding (6) includes a rectangular tube (61), a lower reinforcing plate (62), an upper reinforcing plate (63), and an outer reinforcing plate (64). Two rectangular tubes (61) are spaced apart along the length of the left side plate (1) of the vehicle frame and are welded to the outer wall of the left side plate (1). The two rectangular tubes (61) are welded to the outer wall of the left side plate (1) of the vehicle frame through the lower reinforcing plate (62) and the upper reinforcing plate (63). At least one outer reinforcing plate (64) is welded between the side walls of the two rectangular tubes (61) that are opposite to each other and the outer wall of the left side plate (1) of the vehicle frame.
5. The telescopic boom reinforced frame as described in claim 1, characterized in that, The outer wall of the side plate reinforcing plate (7) is in the shape of a concave-convex arc.